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• Is there a good reflection library available for Scala?

  - by Erik Engbrecht

  I'm working on a library that needs reflection, and needs Scala-specific information as opposed to what is available via the standard Java reflection API. Right now I'm using the undocumented code in scalap (the Scala equivalent to javap) and trying to associate the data it provides with Java reflection objects so that I can call methods and such (scalap just parses class files). I found this but there's nothing there... https://github.com/dubochet/scala-reflection ...and I've searched the Scala SVN repo for traces of it and failed to find it there, either (but it could be I just missed it). Does anyone know of a Scala reflection library that provides information similar to what scalap provides but also allows you to call methods, access fields, etc like the Java reflection library?

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• redirecting to multiple virtual subdomains using htaccess

  - by Gerald Ferreira

  Hi Everyone I am trying to create subdomains via htaccess. The code below does exactly want I want It takes http://domain.com and redirect it to http://www.domain.com Options -Indexes DirectoryIndex index.html index.htm index.asp index.php ErrorDocument 401 http://www.domain.com ErrorDocument 403 http://www.domain.com ErrorDocument 404 http://www.domain.com ErrorDocument 500 http://www.domain.com ErrorDocument 507 http://www.domain.com RewriteEngine On RewriteCond %{HTTP_HOST} ^domain.com$ RewriteRule ^(.*) http://www.domain.com/$1 [QSA,L,R=301] AddType text/html .html .htm .asp This is the part I am not to sure of: RewriteCond %{HTTP_HOST} ^domain.com/nl$ RewriteRule ^(.*) http://nl.domain.com/$1 [QSA,L,R=301] How can I create virtual subdomains so that if someone goes to http://nl.domain.com it would stay on http://nl.domain.com if someone types http://www.nl.domain.com it would take out the http://www.nl.domain.com and make it http://nl.domain.com also the directory structure for the subdomain would be http://www.domain.com/nl (This is where the actual files will be sitting). so if someone goes to http://www.domain.com/nl it should also redirect to http://nl.domain.com. Thanks in advance for any advice and pointers

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• How should I move my code from dev to production?

  - by Teddy

  I have created a PHP web-application. I have 3 environments: DEV, TEST, PROD. What's a good tool / business practice for me to move my PHP web-application code from DEV to TEST to the PROD environment? Realizing that my TEST environment still only connects to my TEST database; whereas, I need to PROD environment to connect to my PROD database. So the code is mostly the same, except that I need to change my TEST code once moved into PROD to connect to the PROD database and not TEST database. I've heard of people taking down Apache in such away that it doesn't allow new connections and once all the existing connections are idle it simply brings down the web server. Then people manually copy the code and then manually update the config files of the PHP application to also point to the PROD instance. That seems terribly dangerous. Does a best practice exists?

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• Avoiding dispose of underlying stream

  - by danbystrom

  I'm attempting to mock some file operations. In the "real" object I have: StreamWriter createFile( string name ) { return new StreamWriter( Path.Combine( _outFolder, name ), false, Encoding.UTF8 ) ); } In the mock object I'd like to have: StreamWriter createFile( string name ) { var ms = new MemoryStream(); _files.Add( Path.Combine( _outFolder, name ), ms ); return new StreamWriter( ms, Encoding.UTF8 ) ); } where _files is a dictionary to store created files for later inspection. However, when the consumer closes the StreamWriter, it also disposes the MeamoryStream... :-( Any thoughts on how to pursue this?

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• Rmagick Fails To Manipulate PNG

  - by Tyler DeWitt

  Following the Railscast episode on CarrierWave: I installed ImageMagick on Mountain Lion via homebrew, exported the following path: export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH" Symlinked the following: ln -s /usr/local/include/ImageMagick/wand /usr/local/include/wand ln -s /usr/local/include/ImageMagick/magick /usr/local/include/magick And installed rmagick via bundler. In my uploader I have the following: include CarrierWave::RMagick version :thumb do process :resize_to_limit => [85, 85] end Which creates thumbnails just fine, but not for png files. I've tried a handful of png images and it always fails with this error: Failed to manipulate with rmagick, maybe it is not an image? Original Error: no decode delegate for this image format `<path>/public/uploads/tmp/20121022-2133-9885-3333/thumb_cat_vs_internet.png' @ error/constitute.c/ReadImage/544 jpeg images work just fine. EDIT identify -list format | grep -i png returns nothing, indicating the png decode delegate is probably missing. Now what?

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• SVG drawing application with vector export

  - by Bram Jetten

  I want to create a drawing application where I can place text and images on a canvas. Those elements also need to be interactively manipulated. Eventually the resulting canvas has to be exported to a vector based PDF. An excellent contender for this functionality would be SVG. However, this application also needs to be crossbrowser compatible. I've been browsing around for some time now and have seen a couple of solutions available. I found among others RaphaelJS and Google's SVGWeb for working with SVG. Now for converting those SVG files to a PDF I'm not sure if for instance Batik will offer me what I am looking for. Also, how would bitmap images be handled when converting the SVG to PDF?

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• file operations

  - by devtech

  I am writing a script for renaming/copying the content of a file. I have temp & temp1 folders. Inside temp1 I have 1000 .txt files with names 1.txt, 2.txt, 3.txt ... & in temp folder I have sub directories named 1, 2, 3. In the folders 1, 2, 3 ..., I have one file with extension java or xml. My need is to automate the copy of the contents of the .txt file, and paste into the respective file in the temp sub directory. Is it possible to do this using Perl?

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• Pipe ffmpeg to oggenc(2) with .NET

  - by acidzombie24

  I am trying to encode ogg files at -q 6/192k. ffmpeg doesnt seem to be listenting to my command ffmpeg -i blah -acodec vorbis -ab 192k -y out.ogg So i would like to use the recommended ogg encoder. It says the input must be wav or similar. I would like to pipe a wav from ffmpeg to ogg. However not only am i unsure if oggenc2 will accept input from stdin, i have no idea how to pipe one process to another inside of .net using the Process class.

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• Mercurial between server and local?

  - by artmania

  I have a portal development work in process... I had some troubles time to time like losing, overwriting wrong files, etc... So I decided to go for Mercurial for this development. My first experience with Source Control. I work on server [bluehost] for this project, is there any way to keep update backups at local? Do I have to setup Mercurial to Bluehost? any way to sync changes on server to my local mac?

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• Using Hibernate with Dynamic Eclipse Plug-ins

  - by AlbertoPL

  I have classes that are named exactly the same across different plug-ins that I use for my application, and I'd like to be able to configure them properly with Hibernate. The problem is that it looks like Hibernate dynamically generates a class' package name when trying to find a class when it's doing its mapping. With one plug-in this scheme works, but across multiple plug-ins it's not working. It looks like Hibernate gets confused when dealing with Hibernate configuration files across multiple plug-ins. Is this because each plug-in has its own class-loader? What is the best way to proceed to make this work with the existing plug-ins and Hibernate?

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• NuGet - managing and removing mutil version packages in single solution

  - by Myles McDonnell

  SCENARIO One VS solution with n projects. Project A references package Y v1, Project B references package Y v2. It is now not possible to update all references to package Y for all projects in the solution using the NuGet package manage dialog at the solution level, it is only possible to do this when all projects reference the same version of package Y. Not a big deal for only two projects, but I'm dealing with lots of projects that through poor package management are referencing many package versions when they should all reference the same version. Before I spend the afternoon writing a console app. to auto update all package.config files for a solution so that each referenced package is only referenced via it's latest version (latest referenced, not the very latest, with exceptions/caveats etc)....is there a tool/method for doing this already? Or some other approach I am unaware of?

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• What are good Python and/or Django deployment solutions?

  - by e-satis

  For now I use some mix between virtual_env, pip and Fabric. This allows to: install required libs; generate dynamic content; isolate installation; push everything through ssh. It works well, I just want to know if there are other tools around. The only problem I could think of is that it's a lot of to set up every time. It doesn't solve database / media files migration issues either, but maybe I should just open another question for this specific subject. Eventually, I don't know how to automatize the server setup. I'd love to have a tool to let me configure Apache/Lighttp/Cherokee and MySQL automatically. Related : How django projects can be deployed with minimal installation works?

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• Preview result of update/insert query whithout comitting changes to database in MySQL?

  - by Camsoft

  I am writing a script to import CSV files into existing tables within my database. I decided to do the insert/update operations myself using PHP and INSERT/UPDATE statements, and not use MySQL's LOAD INFILE command, I have good reasons for this. What I would like to do is emulate the insert/update operations and display the results to the user, and then give them the option of confirming that this is OK, and then committing the changes to the database. I'm using InnoDB database engine with support for transactions. Not sure if this helps but was thinking down the line of insert/update, query data, display to user, then either commit or rollback transaction? Any advise would be appreciated.

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• Programmatically execute vim commands?

  - by Ben Gartner

  I'm interested in setting up a TDD environment for developing Vim scripts and rc files. As a simple example, say I want to have vim insert 8 spaces when I press the tab key. I would set up a script that did the following: Launch vim using a sandboxed .vimrc file press i press tab press esc press :w test_out assert that test_out contains ' ' by the default config in vim, this would fail. However, once I add set expandtab to my .vimrc file, the test will pass. So the question is, how do I programmatically issue these commands? 'vim -c ' is close, but seems to only work for ex mode commands. Any suggestions? This question seem to be thoroughly google-proof.

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• Imagemagick command line in PHP

  - by charly

  Hello everyone, I've got the following two commands for imagemagick in the command line: convert in.png container-mask.png +matte -compose CopyOpacity -composite out.png composite container.png out.png -compose multiply final.png Those two commands include 3 files: in.png: the file that should be masked container-mask.png: the back/white mask of the areas of container.png where in.png should be visible container.png image that includes the container for in.png, the one that has been masked in black/white with container-mask.png Now the question is how to transpose this commands into PHP calls. I've played around quite a bit, but I can't make sense of the API at http://php.net/manual/en/book.imagick.php Thanks and Bests, Charly

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• Zend_Cache_Backend_Sqlite vs Zend_Cache_Backend_File

  - by Alekc

  Hi, Currently i'm using Zend_Cache_Backend_File for caching my project (especially responses from external web services). I was wandering if I could find some benefit in migrating the structure to Zend_Cache_Backend_Sqlite. Possible advantages are: File system is well-ordered (only 1 file in cache folder) Removing expired entries should be quicker (my assumption, since zend wouldn't need to scan internal-metadatas for expiring date of each cache) Possible disadvantages: Finding record to read (with files zend check if file exists based on filename and should be a bit quicker) in term of speed. I've tried to search a bit in internet but it seems that there are not a lot of discussion about the matter. What do you think about it? Thanks in advance.

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• Avoid htaccess redirecting to one folder Yii

  - by JG Estevez

  I have a website running over Yii Framework, I created a folder in the root path named blog, I installed a wordpress blog under this folder, but the files .htaccess that comes with yii is trying to redirect my request to www.domain.com/blog to the controller/action type which I don't want, I want to treat the blog folder as a completely app with no relation to yii. here is what I've done so far Options +FollowSymLinks IndexIgnore */* RewriteEngine on RewriteCond %{REQUEST_URI} "/blog/" RewriteRule (.*) $1 [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . index.php as you can see I added the conditions to avoid redirecting for the blog folder but when I try to access the the url is telling me The page isn't redirecting properly. How can I solve this?? thanks

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• How to compile runnable jar from packages?

  - by sacamano

  Hey. My java application has got a package structure similar to this; src/com/name/app , src/com/name/app/do , src/com/name/utils/db and so on. How would I go about compiling java files in these directories in to a runnable jar? I need to package required libraries into the generated JAR (jdbc). I've always done these things in Eclipse but now I need to supply a couple of people with a way to compile the repository without the use of eclipse and I was thinking of making a makefile or a script that invokes the necessary javac pattern. Any help is greatly appreciated.

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• Embed a JRE in a Windows executable?

  - by perp

  Suppose I want to distribute a Java application. Suppose I want to distribute it as a single executable. I could easily build a .jar with both the application and all its external dependencies in a single file (with some Ant hacking). Now suppose I want to distribute it as an .exe file on Windows. That's easy enough, given the nice tools out there (such as Launch4j and the likes). But suppose now that I also don't want to depend on the end user having the right JRE (or any JRE at all for that matter) installed. I want to distribute a JRE with my app, and my app should run on this JRE. It's easy enough to create a Windows installer executable, and embed a folder with all necessary JRE files in it. But then I'm distributing an installer and not a single-file app. Is there a way to embed both the application, and a JRE, into an .exe file acting as the application launcher (and not as an installer)?

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• Umbraco -- controlling access to media by membership

  - by Ryan

  I need to set up access to media files with the following structure: A media folder is designated as belonging to a specific member group. Then, a sub-folder below that needs to be available to a subset of members from the parent's member group. Any thoughts on how this can best be accomplished? I'll render the actual file download links with a user control, but how should I set up this access control on the back end? I need a member-group picker and a multiple member picker. Do these exist anywhere?

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• How to set up source control in VS2010

  - by Jouke van der Maas

  Hi, I want to set up source control for my project, but it seems like I need a server for this. I've never done this before, and I couldn't find anything helpfull yet. Is there any way to host a server locally so Visual studio can use it? Or do you know any online (free) servers I can use? By the way, if source control is not actually what i should use for keeping track of changes in my files, please suggest a better option. Thanks in advance.

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• New NCover 3.4.2 makes all my MSTest unit tests fail

  - by Steven

  Yesterday, I decided to install the newest NCover version (3.4.2). However, when I ran it on my existing .ncover configuration file, the NCover output suddenly reported that all my MSTest tests failed. Of course those tests succeed when ran within Visual Studio. Because of this, NCover isn't able to determine any coverage. Somehow the old configuration doesn't seem to work with the new version. Does anyone have any idea what the problem could be or how to solve it? Btw. Here is my ncover configuration. Project settings: Path to application to profile: c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\MSTest.exe Arguments for the application to profile: /testcontainer:D:\dev\MyApp\MyApp.Services.Tests.Unit\bin\Debug\MyApp.Services.Tests.Unit.dll /testcontainer:D:\dev\MyApp\MyApp.WS.Tests.Unit\bin\Debug\MyApp.WS.Tests.Unit.dll Working folder: D:\dev\MyApp

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• PHP File Serving Script: Unreliable Downloads?

  - by JGB146

  This post started as a question on ServerFault ( http://serverfault.com/questions/131156/user-receiving-partial-downloads ) but I determined that our php script was the culprit. So I'm issuing an updated question here about what I believe is the actual issue. I am using a php script to verify permissions and then serve up a file for users of my website to download. Most of the time, this works, but recently one user has been seeing problems with larger downloads. He is only getting ~80% of downloads for files that are 100MB in size. Also, all downloads from this script fail to report a filesize. Further, tests revealed that the same user COULD reliably download each of the failed files if given a direct link (at which point the filesize is reported). Here's the relevant snippet of code that we are using to serve the file: header("Content-type:$contenttype"); $len = filesize($filename); header("Content-Length: $len"); header("Content-Disposition: attachment; filename=".$title.".".$ext); readfile($filename); Note that $contenttype, $filename, $title, and $ext are all set correctly before we get here. These have been triple-checked. None of them are the problem. Also, $len does provide the correct filesize. While researching this issue, I came across this post: http://stackoverflow.com/questions/1334471/content-length-header-always-zero It seems that I am encountering the same issue. When I use the script, I get chunked encoding on the file and no size is set for content-length. I'm hypothesizing that something is going wrong on the large downloads, leading him to get a zero-length chunk before the end of the file. Here's what the headers look like for a direct request: http://www.grinderschool.com/videos/zfff5061b65ae00e8b21/KillsAids021.wmv GET /videos/zfff5061b65ae00e8b21/KillsAids021.wmv HTTP/1.1 Host: www.grinderschool.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729) Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://www.grinderschool.com/phpBB3/viewtopic.php?f=14&p=29468 Cookie: style_cookie=printonly; phpbb3_7c544_u=2; phpbb3_7c544_k=44b832912e5f887d; phpbb3_7c544_sid=e8852df42e08cc1b2250300c2897f78f; __utma=174624884.2719561324781918700.1251850714.1270986325.1270989003.575; __utmz=174624884.1264524375.411.12.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=low%20stakes%20poker%20videos; phpbb3_cmviy_k=; phpbb3_cmviy_u=2; phpbb3_cmviy_sid=d8df5c0943863004ca40ef9c392d371d; __utmb=174624884.4.10.1270989003; __utmc=174624884 Pragma: no-cache Cache-Control: no-cache HTTP/1.1 200 OK Date: Sun, 11 Apr 2010 12:57:41 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635 Last-Modified: Sun, 04 Apr 2010 12:51:06 GMT Etag: "eb42d6-7d9b843-48368aa6dc280" Accept-Ranges: bytes Content-Length: 131708995 Keep-Alive: timeout=10, max=30 Connection: Keep-Alive Content-Type: video/x-ms-wmv And here's what they look like for the request answered by my script: http://www.grinderschool.com/download_video_test.php?t=KillsAids021&format=wmv GET /download_video_test.php?t=KillsAids021&format=wmv HTTP/1.1 Host: www.grinderschool.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729) Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Cookie: style_cookie=printonly; phpbb3_7c544_u=2; phpbb3_7c544_k=44b832912e5f887d; phpbb3_7c544_sid=e8852df42e08cc1b2250300c2897f78f; __utma=174624884.2719561324781918700.1251850714.1270986325.1270989003.575; __utmz=174624884.1264524375.411.12.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=low%20stakes%20poker%20videos; phpbb3_cmviy_k=; phpbb3_cmviy_u=2; phpbb3_cmviy_sid=d8df5c0943863004ca40ef9c392d371d; __utmb=174624884.4.10.1270989003; __utmc=174624884 HTTP/1.1 200 OK Date: Sun, 11 Apr 2010 12:58:02 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635 X-Powered-By: PHP/5.2.11 Content-Disposition: attachment; filename=KillsAids021.wmv Vary: Accept-Encoding Content-Encoding: gzip Keep-Alive: timeout=10, max=30 Connection: Keep-Alive Transfer-Encoding: chunked Content-Type: video/x-ms-wmv So the question is...what can I do to make downloads from the script work properly? Again, for 99% of users, it works as is (though I find it annoying now that no filesize is reported and thus that no time estimate can be computed about the download).

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• Auto-generate WebControls

  - by Adrian K

  I want to generate .net code from a template so that it more rapid, so lazy developers (and I mean that in the nicest possible way!) don't have to write them in the IDE, compile them, etc... I know I can roll my own tool which generates the code using reflection (by reading in some text file, etc), but I just wondered if there was an easier than starting from scratch since this is what ASP.NET basically does already; so is there anyway to leverage this? E.g. to quote Peter A. Bromberg: Even an ASPX page with no code on it gets turned into an instance of the System.Web.UI.Page class. The page is parsed by the ASP.NET engine when it is first requested, and then its JIT compiled version is cached in the Temporary ASP.NET Files folder as long as the application is running and the .aspx page hasn't been changed. Ideally I want to auto-generate WebControls, but examples of anything closely related will do. C# Examples preferred also, but anything considered :)

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• TileMap in Sprite kit tile size issue

  - by TazmanNZL

  I am loading a TMX tile map into sprite kit using JSTileMap and the issue I am having is that if I use a tileSet.png the tiles appear too big when displayed. If I use a [email protected] the tiles appear the correct size but my tmx map does not show correctly instead all I see is the tileSet in a grid. I have tried renaming the [email protected] to tileSet.png but once again the tiles appear too big. Can I use a [email protected] with JSTileMap? The tiles in both png files are 128x128 Any help is appreciated.

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